If scope/base is not perfectly parallel to bore,eg it's slightly off to one side.the rifle zeroed at hundy will be off at two hundy...but typing that out it can only be out by same fly shit amount. If your rifle is kinked to the side,yes it will be off to side...and in theory slightly lower than expected too. Don't overthink it.130mm at 400 is not a huge amount.5" if it is a consistent thing you can compensate. Repeat test again twice and report back with results lol
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